Finding the Fourth Proportional to 281,627.30, 388,678.28 and 160,785.99
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Solution
The fourth proportional to 281,627.30, 388,678.28 and 160,785.99 is: 221,903.28
Step by Step Solution
- Step 1: Write the proportion equation
281,627.30 : 388,678.28 = 160,785.99 : x - Step 2: Convert to fraction form
281,627.30/388,678.28 = 160,785.99/x - Step 3: Cross multiply
281,627.30x = 388,678.28 × 160,785.99 - Step 4: Simplify right side
281,627.30x = 62,494,021,237.37 - Step 5: Solve for x
x = 62,494,021,237.37/281,627.30 - Step 6: Final answer
x = 221,903.28
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.